Display panel of a programmed computer system with a graphical user interface



FIG. 1 is a front view of a display panel of a programmed computer system with a graphical user interface; and,

FIG. 2 is a front view of a portion thereof, on an enlarged scale, for ease of illustration.

The broken lines illustrating the display panel and portions of the graphical user interface are included for the purpose of illustrating unclaimed environment and form no part of the claimed design. 

We claim the ornamental design for a display panel of a programmed computer system with a graphical user interface, as shown and described. 